ME2: Defend a human colony from attack

ME2: Perform 30 headshot kills with any weapon on humanoid targets

ME2: Successfully recruit the biotic Convict

ME2: Complete any research project in the Normandy's laboratory

Kill 1,000 enemies in Mass Effect 1, 2 or 3

ME2: Make 20 enemies scream as they fall or are set on fire

ME2: Save your crew from an overwhelming attack

ME1: Complete 5 missions with the Alliance soldier squad member

Establish a romantic relationship in Mass Effect 1, 2 or 3

ME1: Use Charm or Intimidate to resolve an impossible situation

ME1: Complete Noveria

Complete the Campaign

Complete Assault